Waste-to-energy through incineration of waste is an effective way of producing electricity and heat, at the same time getting rid of the possibly hazardous or unrecyclable waste. The waste can be incinerated at specific WtE plants or at plants with permission for co-incineration of waste at biomass boilers or cement kilns. The waste incineration plants are, however, governed by strict emissions regulations.

Process control and emission monitoring in a waste to energy plant is a challenge. A large number of gaseous components need to be measured with high accuracy. Almost 100% uptime is required and the monitoring system needs to be easy to maintain and fast to calibrate.

No matter where ash and dust accumulate, AVA continuous or batch mixers can condition them to a transportable final product for disposal or recycling. The applications range from power plant ash derived from lignite, hard coal, biomass, or waste incineration power plants to filter dusts from steelworks and coking plants through to special applications such as hot or reactive ashes from various processes, such as shale oil production.

For large combustion plants and power plants we offer theDCEM 2100 particulate monitor. This monitor is certified to EN 15267 part 3 QAL 1 for all industrial processes including waste incineration. It offers outputs in Transmission, Opacity and mg/m3(when calibrated against a Standard Reference Method). The

Many large combustion plants are now required to monitor mass emissions of major pollutants and to do so requires an accurate measurement of stack gas velocity. The VCEM 5100 is certified to EN 15267 part 3 QAL 1 for all industrial processes including waste incineration. It has several key advantages, firstly the sensors optics are not in contact with the hot and dusty environment, the VCEM 5100 can monitor gases at temperatures exceeding 10000C and the analyser requires minimal maintenance. The VCEM 5100 can...

Waste incinerators, cement plants and power plants need good and reliable measurements of total gaseous mercury. The measurement of total gaseous mercury is a challenge due to chemical reactions and contamination. The installed systems will often require a lot of maintanence still not giving reliable results.

BS EN 14181 is a quality assurance standard relevant to plants operating under the Large Combustion Plant (LCPD) and Waste Incineration (WID) Directives. Quality Assurance Level 2 (QAL2) of this standard involves the parallel testing of the plant automated measurement systems (AMS) against a certified test house, making measurements with a comparative standard.

Sulfur plants, acid plats etc. Chemical industry is important to our modern society, but they also produce large quantities of chemical byproducts. These byproducts can be dangerous, and if they cannot be used for other processes, they are often incinerated, causing large amounts of hazardous substances which end up in the flue gases.

Construction waste consists of unwanted material produced directly or incidentally by the construction industry. This includes materials that may contain lead, asbestos or other hazardous materials. There is increasing pressure on the construction industry to dispose of this hazardous material in an environmentally responsible manner. Tetronics can help alleviate this pressure by providing waste recovery plants to deal with all types of hazardous wastes generated from a construction projects lifespan: from...

Both economic and ecological demands make maximum dewatering of sludge a most crucial step in the process flow, especially for the pulp and paper industry with their large quantities of sludge to handle. A highest possible dry content of dewatered sludge minimizes weight and volume, hence achieving the following objectives: reduction of transport and disposal cost. high heating value for incineration without additional fuel. With the sludge dewatering systems including both AKSE S disc thickener and AKUPRESS BX...

A large pharmaceutical plant runs a Thermal Oxidiser on plant to incinerate their solvent-containing gas streams before emission. When the oxidiser is offline, then the plant must monitor the release of solvent to the atmosphere. A ProtIR 204C fixed monitoring system was installed that continually measures 24 plant solvents, including Acetone, Cyclohexane, DCM, DMF, IPA, MIBK, Toluene and THF. Given the high levels that are possible, the system has an active dilution system, reducing the concentration of the...

Hydrogen chloride (HCl) is a colorless, sometimes slightly yellow, gas. It is an undesired environmental component that may be damaging to workers and the surroundings. Exposure limits have thus been established by industries to make sure that the workers operate in a safe environment. HCl monitoring is especially required for incinerators, coal-fired power plants, aluminum recycling and cement plants. Unisearch offers a reliable and easy-to-use HCl analyzer – the TDLAS-based LasIR system. Studies have...

Computrac moisture, solids and ash analyzers are able to quickly and easily determine solids content of cakes, slurries and sludge samples for the wastewater, hazardous waste and landfill industries. Identifying the optimal solids content of these byproducts of the treatment process can provide significant cost savings on chemical additives, haulage and incineration. Computrac analyzers are easy to use and their rugged and reliable design means that you’ll get accurate results whether they’re in...

The Data Explorer PC software for the XL2 Sound Level Meter now includes a series of professional tools for detailed analysis of low-frequency noise (LFN). The graphical representation of time varying frequency components offers an efficient process for identifying the presence and level of LFN. Also the associated high quality audio recording supports further correlation with the objective measurement data.
The new features are particularly useful in the calculation of immission levels which is defined as the...

Sulfide Odor Control
Sulfide is found throughout the environment as a result of both natural and industrial processes. Most sulfide found in nature was produced biologically (under anaerobic conditions) and occurs as free hydrogen sulfide (H2S) - characterized by its rotten egg odor. We are most likely to encounter biogenic H2S in sour groundwaters, swamps and marshes, natural gas deposits, and sewage collection/treatment systems. Manmade sources of H2S typically occur as a result of natural materials containing...

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